Fastener



July 3, 1928. 1,675,788

F. S. CARR FASTENER Original Filed Feb. 26, 1925 Inf/venan' Eed Si ra/7,71

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Patented July ,3, 1928.

UNITED STATES PATENT OFFICE;

PANY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION MAINE.

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Original application led February 26, 1925, Serial No. 1|1,696. Dividedland this application led r.Aug-ust 25, 1925.

This invention aims to provide improvements in separable fasteners.

The application is a division of ymy prior application, Serial No. 11,696, filed February 26, 1925.

In the drawings, which illustrate a preferred embodiment of my invention Figure 1 is an elevational View of a -window and Window trame portion of a vehicle body showing one use of my invention;

Fig. 2 is a section on the line 2-2 of Fig.l

l. showing the -trim strip 'secured to the Window trame by stud and socket means;

Fig. 3 is a section of the trim :strip showing the stud parts of a separable fastener being secured thereto;

Fig. 4 is a fragmentary elevation view oi' a portion olf the trim strip showing the stud elements secured thereto;

Fig. 5` includes a planand a side elevation ot' the attaching part of a fastener stud; and

y Fig. (i includes a plan and a side elevation of the socket-engaging part of a fastener stud. l

Referring to the drawings, I haveshown one ot' the uses of a quick detachable trimming strip. The trimming installation includes a body part 1, which may be the body of an automobile, an upholsteryA fabric 2 covering portions of the inside of the body and a wooden trim strip 3 secured to the body 1 by a plurality of separable stud and socket fastening elements. mentioned parte except the stud elements are substantially as shown and more fully described in my copending application Serial No. 11,696, iled February 26th, 1925.

The stud elements as illustrated include a socket-engaging part 4 and an attaching plate 5. The socket-engaging part has a head 6, a neck,7 and a reinforced base portion 8, and is provided with slots 9 which extend from the top of the head into the base 8 (Fig. 6) to permit contraction and expansion of the head 6.2 The base portion has its edge turned back upon itself to add strength thereto to prevent the baseportion from splitting adjacent the slots 9. The attaching plate 5 is formed from a dishshaped cross-section (Fig. 3). An aperture 10 is provided in the center of the attaching All the aboveV Serial No. 52,318.

plate 5 for purposes hereinafter more fully described. l

To assemble theA studs with the Wooden strip 3, I first drill two concentric recesses 1n the strip 3 at the inner face thereof. The smaller re( ess 11 receives the base 8 of the socket-engaging part 4 and the larger recess receives the attaching plate 5. First the stud is placed in the recess 11 and the attaching plate is then placed over the head 6 and neck 7 of the stud, as best illustrated in F ig. 3. I prefer to have the head of the stud snap through the aperture in the attaching plate as an initial means of assembling the stud element. The neck of the stud is therefore made sufliciently small enough in diameter so that the stud may shift sufficiently When the attaching plate is pressed into place, as illustrated in Fig. 2.

A suitable tool 13 (Fig. 8) `then presses the plate 5 toward the base 8 of the stud, thereby flattening the corners ot' the. plate and forcing them into the wall surrounding the recess 12 as shown in Fig. 2. 'lhus the plate 5 is countersunk into the strip 3 to hold the socketengaging` part 4- in assembled relation therewith so that only the head and neck of eachstud extends beyond the inner tace ot' the strip.

The base 8 of the socket-engagin part 4 is of a smaller diameter than the iameter of its recess 11 and the aperture 10 in the attaching plate is larger than the diameter of the neck of the stud, thereby permitting lateral shifting of the stud relative to the' attaching plate 5 and the trim strip 3 for alignment with a stud-receiving aperture 14 presented by the body part 1.

By securing the stud membersI to the strip in the above-mentioned manner, the strip may fit tightly against'the upholstery fabric 2 and the frame 1 to provide a finished edge. I have found that trim strips secured to the frame parts of the car by stud and socket elements hold very firmly when applied and may be easily and quickly removed for access to,mechanical parts of the car underlying the upholstery.

While I have shown and described a preferred embodiment of my invention, it will be understood that changes involving omission, substitution', alteration and reversal of parts may be made Without departing from the scope of my invention, which is best defined in the appended claims.

Claims:

1, A fastener unit comprising a stud and a stud-attaching plate, said plate presenting a plurality of point portions dished prior to attachment of the unit to a stud-carrying medium but in use being flattened to extend laterally from said plate to engage said stud-carrying medium and secure the stud in position.

2. A fastener comprising, in combination, a stud having a head, a neck and a base and a di-shed stud-attaching part adapted to be flattened to secure the stud to a support, said attaching part having an aperture therethrough larger in diameter than said neck to permit lateral shifting of said stud relative to said attaching part when said head is enteredtherethrough.

3. A fastener comprising, in combination, a resilient stud having a head, a neck and a base, said head split to provide resiliency and a dished stud-attaching part adapted to be flattened to secure the stud to a support, said attaching part having an aperture ltherethrough larger than said neck to permit lateral shifting of said stud relative to said attaching part when said head is entered therethrough, said aperture being slightly less in diameter than the major diameter of said head when expanded s o as to hold said attaching part and stud in assembly prior to being secured to a support.

4. .A fastener installation comprising, in combination, a stud member having a base portion located in a recess provided in a stud support, an attaching plate overlying a portion of the base of said stud and a plurality of attaching portions extending from said attaching plate into the support and lying in substantially the same plane as the rest of said attaching plate thereby to secure said stud member to its support.

5. A fastener installation comprising, in combination, a stud member having a base portion located in a recess provided in a stud support, an attaching plate-overlying a portion of the base of said stud and a plurality of attaching. portions extending from said attaching plate into the support and lying in substantially the same plane as the rest of said attaching plate thereby to secure said stud member to its support, said stud member also presenting a head and neck portion which extends through an aperture in said attaching plate, said stud being shiftable in any` transverse direction relative to the attaching plate and the stud support.

6. A stud unit comprising a stud member having contractible and expansible head and neck portions and a base, and an attaching plate presenting an aperture therethrough of smaller diameter than the normal diameter of the head of the stud through which the head is snapped to secure the two parts together and a plurality of initially bent pointed attaching portions presented at the outer periphery of said attaching plate for securing said unit to a support.

In testimony whereof, I have signed my name to this specification.

FRED S. CARR. 

